I read that it's 'recommended' for those doing life sciences, but how important is the course? I've already chosen to study MTH1020 and MTH1030 so I already pass the mathematics unit requirements, is it really necessary that I study STA1010?
Absolutely, categorically, no.
Maybe the math faculty is just looking for more students, i don't know.
Where did you read this? I'm interested in knowing.
A lot of things are recommended but in the end its up to your own logic about doing them. Learn all the requirements and you only need to fulfil those. Everything else thats recommended (even "Recommended orders" like taking a math subject in first year for science students, i'm leaving mine till now [3rd]) is up to you.
I'm in 3rd year and every one of my 2nd year science units have been life science. There hasn't been a time yet where i needed super advanced statistics. We did do some decently in depth analysis in Physiology but we used a statistics package called
SPSS, you didn't need to know the math, you just needed to know how to use the software (which they taught you).
As far as i know, in life-sciences anyway, most of it isn't done pen and paper by equation or anything like that, you're just plugging stuff into software much like you would excel.